diff --git a/internal/store/migrate_test.go b/internal/store/migrate_test.go
index bd5f9b5..460c71e 100644
--- a/internal/store/migrate_test.go
+++ b/internal/store/migrate_test.go
@@ -176,8 +176,8 @@ func TestMigrateEmbeddedMigrations(t *testing.T) {
 	if err := Migrate(context.Background(), s.Writer, migrations.FS); err != nil {
 		t.Fatal(err)
 	}
-	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0018_shopping_group_frozen_name" {
-		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0018_shopping_group_frozen_name", got)
+	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0019_shopping_group_frozen_name" {
+		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0019_shopping_group_frozen_name", got)
 	}
 }
 
@@ -197,8 +197,8 @@ func TestMigrateBootstrapThenEmbeddedInitApplies(t *testing.T) {
 	if err := Migrate(ctx, s.Writer, migrations.FS); err != nil {
 		t.Fatal(err)
 	}
-	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0018_shopping_group_frozen_name" {
-		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0018_shopping_group_frozen_name", got)
+	if got := versions(migrationRows(t, s)); got != "0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0019_shopping_group_frozen_name" {
+		t.Errorf("versions = %q, want 0000_bootstrap,0001_init,0002_household_settings_updated_by,0003_jobs_status,0004_ai_provider_presets,0005_ai_provider_xai,0006_ai_runs_status,0007_recipe_grounding,0008_dinner_recipe_url,0009_dinner_grounding_error,0010_dinner_grounding_revision,0011_ground_dinner_job_revision,0012_suggestion_name,0013_week_plan_revision,0014_rotation_review_name,0015_google_reconnect_required,0016_shopping_list_untitled,0017_shopping_list_chat_send_unconfirmed,0019_shopping_group_frozen_name", got)
 	}
 	if !tableExists(t, s, "dinners") {
 		t.Error("table from 0001_init was not created")
@@ -923,13 +923,13 @@ func TestMigrateShoppingListChatSendUnconfirmed(t *testing.T) {
 	}
 }
 
-// TestMigrateShoppingGroupFrozenName applies 0018 over a frozen list and
+// TestMigrateShoppingGroupFrozenName applies 0019 over a frozen list and
 // a current one: the frozen list's group takes its dinner's name now, the
 // current list's group has none, and a frozen name is never empty.
 func TestMigrateShoppingGroupFrozenName(t *testing.T) {
 	ctx := context.Background()
 	s := openTestStore(t)
-	migrateBefore(t, s, "0018")
+	migrateBefore(t, s, "0019")
 	for _, stmt := range []string{
 		`INSERT INTO dinners (id, name, normalized_name, status, origin, is_favorite, grounding_status, created_at, updated_at)
 			VALUES ('dinner-1', 'Beef Stew', 'beef stew', 'regular', 'regular', 0, 'manual', 'c', 'u'),
@@ -970,7 +970,7 @@ func TestMigrateShoppingGroupFrozenName(t *testing.T) {
 		t.Fatal(err)
 	}
 	if want := []string{"group-1|Beef Stew|u", "group-2|NULL|u"}; strings.Join(got, ",") != strings.Join(want, ",") {
-		t.Errorf("shopping groups after 0018 = %v, want %v", got, want)
+		t.Errorf("shopping groups after 0019 = %v, want %v", got, want)
 	}
 	if _, err := s.Writer.Exec(`UPDATE shopping_groups SET frozen_dinner_name = '' WHERE id = 'group-1'`); err == nil || !strings.Contains(err.Error(), "CHECK constraint failed") {
 		t.Errorf("empty frozen name: error %v, want CHECK constraint failed", err)
diff --git a/migrations/0018_shopping_group_frozen_name.sql b/migrations/0019_shopping_group_frozen_name.sql
similarity index 100%
rename from migrations/0018_shopping_group_frozen_name.sql
rename to migrations/0019_shopping_group_frozen_name.sql